Author: Kulevoy, T.
Paper Title Page
MOPAB206 The RF Parameters of Heavy Ions Linac 679
 
  • A. Sitnikov, G. Kropachev, T. Kulevoy, D.N. Selesnev, A.I. Semennikov
    ITEP, Moscow, Russia
  • M.L. Smetanin, A.V. Telnov, N.V. Zavyalov
    VNIIEF, Sarov, Russia
  
  The new linac for A/Z = 8, out­put en­ergy 4 MeV/u and 3 mA cur­rent is under de­vel­op­ment at NRC "Kur­cha­tov In­sti­tute"-ITEP. The linac con­sists of Ra­dio-Fre­quency Quadru­pole (RFQ) with op­er­at­ing fre­quency 40 MHz and two sec­tions of Drift Tube Linac (DTL) with op­er­at­ing fre­quency 80 and 160 MHz, cor­re­spon­dently. Both DTL has a mod­u­lar struc­ture and con­sists of sep­a­rated in­di­vid­u­ally phased res­onators with fo­cus­ing mag­netic quadrupoles lo­cated be­tween the cav­i­ties. The DTL1 is based on the quar­ter-wave res­onators mean­while DTL2 is based on IH 5-gap res­onators. The 6D beam match­ing be­tween RFQ and DTLs is pro­vided by mag­netic quadru­pole lenses and 2-gaps RF-bunch­ers. The paper pre­sents re­sults of the ra­dio-fre­quency (RF) de­sign of linac ac­cel­er­at­ing struc­tures.  
poster icon Poster MOPAB206 [0.559 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB206  
About • paper received ※ 14 May 2021       paper accepted ※ 01 July 2021       issue date ※ 29 August 2021  
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MOPAB224 Optimization and Error Studies for the USSR HMBA Lattice 730
 
  • L. Hoummi, N. Carmignani, L.R. Carver, S.M. Liuzzo, T.P. Perron, S.M. White
    ESRF, Grenoble, France
  • I.A. Ashanin, S.M. Polozov
    MEPhI, Moscow, Russia
  • T. Kulevoy
    ITEP, Moscow, Russia
  • T. Kulevoy
    NRC, Moscow, Russia
  
  Sev­eral new ac­cel­er­a­tor fa­cil­i­ties will be built in Rus­sia in the next few years. One of those fa­cil­i­ties is a 6 GeV stor­age ring (SR) light source, the Ul­ti­mate Source of Syn­chro­tron Ra­di­a­tion (USSR) to be built in Protvino, near Moscow. The Crem­lin+ pro­ject aims to in­cor­po­rate in this ac­tiv­ity the best ex­pe­ri­ence of Eu­ro­pean Ac­cel­er­a­tor Lab­o­ra­to­ries. The op­ti­miza­tion of such op­tics in­clud­ing re­al­is­tic er­rors and a com­mis­sion­ing-like se­quence of cor­rec­tions, using Multi-Ob­jec­tive Ge­netic Al­go­rithms (NSGA-II) is pre­sented. Sev­eral cor­rec­tions schemes are also tested.  
poster icon Poster MOPAB224 [1.164 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB224  
About • paper received ※ 12 May 2021       paper accepted ※ 01 June 2021       issue date ※ 13 August 2021  
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MOPAB300 Description of the Beam Diagnostics Systems for the SOCIT, SODIT and SODIB Applied Research Stations Based on the NICA Accelerator Complex 946
 
  • A. Slivin, A. Agapov, A.A. Baldin, A.V. Butenko, G.A. Filatov, K.N. Shipulin, E. Syresin, G.N. Timoshenko, A. Tuzikov
    JINR, Dubna, Moscow Region, Russia
  • D.V. Bobrovskiy, A.I. Chumakov, S. Soloviev
    MEPhI, Moscow, Russia
  • I.L. Glebov, V.A. Luzanov
    GIRO-PROM, Dubna, Moscow Region, Russia
  • A.S. Kubankin
    BelSU, Belgorod, Russia
  • T. Kulevoy, Y.E. Titarenko
    ITEP, Moscow, Russia
  
  Within the frame­work of the NICA pro­ject an In­no­va­tion Block is being con­structed. It in­cludes an ap­plied re­search sta­tion for mi­crochips with a pack­age for Sin­gle Event Ef­fects (SEE) test­ing (en­ergy range of 150-500 MeV/n, the SODIT sta­tion), an ap­plied re­search sta­tion for test­ing of de­cap­su­lated mi­crochips (ion en­ergy up to 3,2 MeV/n, the SOCIT sta­tion), and an ap­plied re­search sta­tion for space ra­dio­bi­o­log­i­cal re­search and mod­el­ling of in­flu­ence of heavy charged par­ti­cles on cog­ni­tive func­tions of the brain of small lab­o­ra­tory an­i­mals and pri­mates (en­ergy range 500-1000 MeV/n, the SODIB sta­tion). The sys­tems for di­ag­nos­tics and con­trol of the beam char­ac­ter­is­tics dur­ing the cer­ti­fi­ca­tion and ad­just­ment as well as the sys­tems for on­line di­ag­nos­tics and con­trol of the beam char­ac­ter­is­tics of the SOCIT, SODIT and SODIB ap­plied re­search sta­tions are de­scribed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB300  
About • paper received ※ 19 May 2021       paper accepted ※ 27 May 2021       issue date ※ 23 August 2021  
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TUPAB049 USSR HMBA Storage Ring Lattice Options 1466
 
  • S.M. Liuzzo, N. Carmignani, L.R. Carver, J. Chavanne, L. Hoummi, J. Jacob, T.P. Perron, R. Versteegen, S.M. White
    ESRF, Grenoble, France
  • I.A. Ashanin, V.S. Dyubkov, S.M. Polozov
    MEPhI, Moscow, Russia
  • I.A. Ashanin, V.S. Dyubkov, T. Kulevoy, S.M. Polozov
    NRC, Moscow, Russia
  • T. Kulevoy
    ITEP, Moscow, Russia
  
  Funding: European Union’s Horizon 2020 research and innovation program under grant #871072 Russian federation resolution #287
Sev­eral new ac­cel­er­a­tor fa­cil­i­ties will be built in Rus­sia in a few years from now. One of those fa­cil­i­ties is a 6GeV stor­age ring (SR) light source (USSR - Ul­ti­mate Source of Syn­chro­tron Ra­di­a­tion) to be built in Protvino, near Moscow. The Crem­lin+ pro­ject aims to in­cor­po­rate in this ac­tiv­ity the best ex­pe­ri­ence of Eu­ro­pean Ac­cel­er­a­tor Lab­o­ra­to­ries. The de­sign of the op­tics for this SR is pre­sented here in two dec­li­na­tions lead­ing to 70 pm-rad equi­lib­rium hor­i­zon­tal emit­tance. The first is a 40 cells lat­tice, the sec­ond is the same but in­cludes high field Short Bend­ing mag­net sources in each cell. Op­tics and high order mul­ti­pole op­ti­miza­tions are per­formed to ob­tain suf­fi­cient life­time and dy­namic aper­ture for a con­ser­v­a­tive off-axis in­jec­tion. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB049  
About • paper received ※ 12 May 2021       paper accepted ※ 11 June 2021       issue date ※ 21 August 2021  
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TUPAB050 A Long Booster Option for the USSR 6 GeV Storage Ring 1470
 
  • S.M. Liuzzo, N. Carmignani, L.R. Carver, L. Hoummi, T.P. Perron, R. Versteegen, S.M. White
    ESRF, Grenoble, France
  • I.A. Ashanin, S.M. Polozov
    MEPhI, Moscow, Russia
  • I.A. Ashanin, T. Kulevoy, S.M. Polozov
    NRC, Moscow, Russia
  • T. Kulevoy
    ITEP, Moscow, Russia
  
  Funding: European Union’s Horizon 2020 research and innovation program under grant #871072 Russian federation resolution no. 287
The de­sign of the op­tics of a full length 6 GeV booster for the USSR (Ul­ti­mate Source of Syn­chro­tron Ra­di­a­tion) are pre­sented. This op­tion al­ready fol­lowed with suc­cess by other lab­o­ra­to­ries, would allow to ob­tain a small emit­tance in­jected beam thus en­abling smooth top-up op­er­a­tion. De­tails of the de­sign in­spired by the ESRF DBA lat­tice and the pos­si­ble op­er­at­ing modes are de­scribed. The trans­fer lines booster to stor­age ring are also ad­dressed in this paper. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB050  
About • paper received ※ 12 May 2021       paper accepted ※ 11 June 2021       issue date ※ 24 August 2021  
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TUPAB057 Carbon Beam at I-3 Injector for Semiconductor Implantation 1489
 
  • A.A. Losev, P.N. Alekseev, N.N. Alexeev, T. Kulevoy, A.D. Milyachenko, Yu.A. Satov, A. Shumshurov
    ITEP, Moscow, Russia
  • P.B. Lagov
    NUST MISIS, Moscow, Russia
  • M.E. Letovaltseva
    MIREA, Moscow, Russia
  • Y.S. Pavlov
    IPCE RAS, Moscow, Russia
  
  Car­bon im­plan­ta­tion can be ef­fec­tively used for axial mi­nor­ity charge car­ri­ers life­time con­trol in var­i­ous sil­i­con bulk and epi­tax­ial pla­nar struc­tures. When car­bon is im­planted, more sta­ble re­com­bi­na­tion cen­ters are formed and sil­i­con is not doped with ad­di­tional im­pu­ri­ties, as for ex­am­ple, when ir­ra­di­ated with pro­tons or he­lium ions. Eco­nom­i­cally, such a process com­petes with al­ter­na­tive meth­ods, and is more ef­fi­cient for ob­tain­ing small life­times (sev­eral nanosec­onds). I-3 ion in­jec­tor with laser-plasma ion source in In­sti­tute for the­o­ret­i­cal and ex­per­i­men­tal physics (ITEP) is used as ion im­planter in semi­con­duc­tors. The ion source uses pulsed CO2 laser setup with ra­di­a­tion-flux den­sity of 1011 W/cm2 at tar­get sur­face. The ion source pro­duces beams of var­i­ous ions from solid tar­gets. The gen­er­ated ion beam is ac­cel­er­ated in the two gap RF res­onator at volt­age of up to 2 MV per gap. Re­sult­ing beam en­ergy is up to 4 MV per charge. Pa­ra­me­ters of car­bon ion beam gen­er­ated and used for semi­con­duc­tor sam­ples ir­ra­di­a­tion dur­ing ex­per­i­ments for axial mi­nor­ity charge car­ri­ers life­time con­trol in var­i­ous sil­i­con bulk and epi­tax­ial pla­nar struc­tures are pre­sented.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB057  
About • paper received ※ 15 May 2021       paper accepted ※ 28 May 2021       issue date ※ 01 September 2021  
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TUPAB299 Tuned Delay Unit for a Stochastic Cooling System at NICA Collider 2186
 
  • S.V. Barabin, T. Kulevoy, D.A. Liakin, A.Y. Orlov
    ITEP, Moscow, Russia
  • I.V. Gorelyshev, K.G. Osipov, V.V. Peshkov, A.O. Sidorin
    JINR/VBLHEP, Dubna, Moscow region, Russia
  
  Sto­chas­tic cool­ing is one of the cru­cial NICA (Nu­clotron-based Ion Col­lider fA­cil­ity) sub­sys­tems. This sys­tem re­quires fine tun­ing of the re­sponse delay to the kicker, for both lon­gi­tu­di­nal and trans­verse sto­chas­tic cool­ing sys­tems. The use of a dig­i­tal delay line al­lows to add ad­di­tional fea­tures such as a fre­quency de­pen­dent group ve­loc­ity cor­rec­tion. To analyse the ca­pa­bil­i­ties of the dig­i­tal delay unit, a pro­to­type of the de­vice was cre­ated and tested. The ar­ti­cle pre­sents the char­ac­ter­is­tics of the pro­to­type, its ar­chi­tec­ture and prin­ci­ple of op­er­a­tion, test re­sults and es­ti­ma­tions for the fu­ture de­vel­op­ments.  
poster icon Poster TUPAB299 [0.493 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB299  
About • paper received ※ 17 May 2021       paper accepted ※ 10 June 2021       issue date ※ 16 August 2021  
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WEPAB298 Design of an Accurate LLRF System for an Array of Two-Gap Resonators 3360
 
  • D.A. Liakin, S.V. Barabin, T. Kulevoy, A.Y. Orlov
    ITEP, Moscow, Russia
  
  A par­ti­cle ac­cel­er­a­tor based on an array of two-gap res­onators re­quires a con­trol sys­tem, which is re­spon­si­ble for pre­cise setup and sta­bi­liza­tion of the phase and mag­ni­tude of the elec­tro­mag­netic field in res­onators. We de­velop a cost-ef­fec­tive LLRF sys­tem for the array of more than 80 res­onators and three dif­fer­ent op­er­at­ing fre­quen­cies. The de­sign is based on proved so­lu­tion used for 5-res­onators ac­cel­er­a­tor HILAC (pro­ject NICA, Dubna). This paper gives an overview of the basic struc­ture and some spe­cific fea­tures of the de­vel­op­ing LLRF con­trol sys­tem.  
poster icon Poster WEPAB298 [0.355 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB298  
About • paper received ※ 18 May 2021       paper accepted ※ 23 June 2021       issue date ※ 30 August 2021  
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THPAB286 Quadrupole Focusing Lenses for Heavy Ion Linac 4359
 
  • V. Skachkov, A.V. Kozlov, G. Kropachev, T. Kulevoy, D.A. Liakin, O.S. Sergeeva, V.S. Skachkov, Yu. Stasevich
    ITEP, Moscow, Russia
  
  Sim­u­la­tion re­sults of pulsed cur­rent elec­tro­mag­net quadrupoles with in­te­gral of the mag­netic field gra­di­ent up to 7 T are pre­sented. Mag­nets for the DTL and MEBT fo­cus­ing chan­nels are de­sign­ing for the heavy-ion linac in In­sti­tute for The­o­ret­i­cal and Ex­per­i­men­tal Physics (ITEP - NRC "Kur­cha­tov In­sti­tute"). Ap­pro­pri­ate con­di­tions which promise get­ting the mag­netic lens pa­ra­me­ters re­quired at re­stric­tions on the over­all length <130 mm as well as on the beam aper­ture >45 mm are de­fined. It is shown that the chan­nel ac­cep­tance to beam emit­tance ratio de­sired not less than 3 can be pro­vided by con­ven­tional low-car­bon steel up to a mag­netic aper­ture of 50 mm in di­am­e­ter while be­yond this size per­me­n­dur is out of com­pe­ti­tion. Some as­pects of the pulsed power sup­ply sys­tem are con­sid­ered and main pa­ra­me­ters of the pulse cur­rent gen­er­a­tor (PCG) are given.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB286  
About • paper received ※ 14 May 2021       paper accepted ※ 30 June 2021       issue date ※ 02 September 2021  
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THPAB319 RF Power Generating System for the Linear Ion Accelerator 4417
 
  • V.G. Kuzmichev, T. Kulevoy, D.A. Liakin, D.N. Selesnev, A. Sitnikov
    ITEP, Moscow, Russia
  • M.L. Smetanin, A.V. Telnov, N.V. Zavyalov
    VNIIEF, Sarov, Russia
  
  An RF power sup­ply sys­tem based on solid-state am­pli­fiers has been de­vel­oped for the lin­ear ac­cel­er­a­tor of heavy ions. The re­port con­tains in­for­ma­tion on the char­ac­ter­is­tics and com­po­si­tion of the sys­tem, pre­sents the LLRF struc­ture for RFQ and DTL sec­tions.  
poster icon Poster THPAB319 [0.275 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB319  
About • paper received ※ 16 May 2021       paper accepted ※ 16 August 2021       issue date ※ 19 August 2021  
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